Sequentially Fluorinated PTAA Polymers for Enhancing VOC of High-Performance Perovskite Solar Cells

被引:110
作者
Kim, Youngwoong [1 ]
Jung, Eui Hyuk [2 ]
Kim, Geunjin [2 ]
Kim, Donguk [1 ]
Kim, Bumjoon J. [1 ]
Seo, Jangwon [2 ]
机构
[1] Korea Adv Inst Sci & Technol, Dept Chem & Biomol Engn, Daejeon 34141, South Korea
[2] KRICT, Div Adv Mat, Daejeon 34141, South Korea
基金
新加坡国家研究基金会;
关键词
fluorination; hole transporting materials; open-circuit voltage; perovskite solar cells; poly(triarylamine); HOLE-TRANSPORTING MATERIAL; SPIRO-OMETAD; CONJUGATED POLYMERS; EFFICIENT; TRIPHENYLAMINE; DERIVATIVES; FILMS;
D O I
10.1002/aenm.201801668
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The energy level alignment of the perovskite and hole transporting materials (HTMs) is essential for increasing the open-circuit voltage (V-oc) and enhancing the performance of perovskite solar cells (PSCs). In this work, new sequentially fluorinated poly(triarylamine) polymers (PTAA, 1F-PTAA, and 2F-PTAA) with tuned highest occupied molecular orbital (HOMO) energy levels are developed and applied as HTMs into PSCs. The fluorination approach successfully leads to stepwise downshifting of the HOMO levels of PTAA derivatives, resulting in an obvious increase in the V-oc and power conversion efficiency (PCE) of the PSCs. In particular, introduction of 1F-PTAA polymer in (FAPbI(3))(0.85)(MAPbBr(3))(0.15)-based mesoporous n-i-p structure PSCs achieves the high stabilized PCE of 21.2% at the maximum power point with improved V-oc of 1.14 V. To elucidate the importance of the optimized degree of fluorination of PTAA polymers on the photovoltaic performances, the optical, electrical, photophysical properties, and doping behaviors of the fluorinated PTAA derivatives are investigated.
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页数:9
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共 58 条
[1]   High Open-Circuit Voltage: Fabrication of Formamidinium Lead Bromide Perovskite Solar Cells Using Fluorene-Dithiophene Derivatives as Hole-Transporting Materials [J].
Arora, Neha ;
Orlandi, Simonetta ;
Dar, M. Ibrahim ;
Aghazada, Sadig ;
Jacopin, Gwenole ;
Cavazzini, Marco ;
Mosconi, Edoardo ;
Gratia, Paul ;
De Angelis, Filippo ;
Pozzi, Gianluca ;
Graetzel, Michael ;
Nazeeruddin, Mohammad Khaja .
ACS ENERGY LETTERS, 2016, 1 (01) :107-112
[2]   Fluorinated organic materials for electronic and optoelectronic applications: the role of the fluorine atom [J].
Babudri, Francesco ;
Farinola, Gianluca M. ;
Naso, Francesco ;
Ragni, Roberta .
CHEMICAL COMMUNICATIONS, 2007, (10) :1003-1022
[3]   Non-wetting surface-driven high-aspect-ratio crystalline grain growth for efficient hybrid perovskite solar cells [J].
Bi, Cheng ;
Wang, Qi ;
Shao, Yuchuan ;
Yuan, Yongbo ;
Xiao, Zhengguo ;
Huang, Jinsong .
NATURE COMMUNICATIONS, 2015, 6
[4]   Effect of Fluorination on the Properties of a Donor-Acceptor Copolymer for Use in Photovoltaic Cells and Transistors [J].
Bronstein, Hugo ;
Frost, Jarvist M. ;
Hadipour, Afshin ;
Kim, Youngju ;
Nielsen, Christian B. ;
Ashraf, Raja Shahid ;
Rand, Barry P. ;
Watkins, Scott ;
McCulloch, Iain .
CHEMISTRY OF MATERIALS, 2013, 25 (03) :277-285
[5]   Novel trends of electrochemical oxidation of amino-substituted triphenylamine derivatives [J].
Chiu, KY ;
Su, TX ;
Li, JH ;
Lin, TH ;
Liou, GS ;
Cheng, SH .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2005, 575 (01) :95-101
[6]   Design of Cyanovinylene-Containing Polymer Acceptors with Large Dipole Moment Change for Efficient Charge Generation in High-Performance All-Polymer Solar Cells [J].
Cho, Han-Hee ;
Kim, Seonha ;
Kim, Taesu ;
Sree, Vijaya Gopalan ;
Jin, Sung-Ho ;
Kim, Felix Sunjoo ;
Kim, Bumjoon J. .
ADVANCED ENERGY MATERIALS, 2018, 8 (03)
[7]   Indolo[3,2-b]indole-based crystalline hole-transporting material for highly efficient perovskite solar cells [J].
Cho, Illhun ;
Jeon, Nam Joong ;
Kwon, Oh Kyu ;
Kim, Dong Won ;
Jung, Eui Hyuk ;
Noh, Jun Hong ;
Seo, Jangwon ;
Seok, Sang Il ;
Park, Soo Young .
CHEMICAL SCIENCE, 2017, 8 (01) :734-741
[8]   Highly efficient perovskite solar cells with a compositionally engineered perovskite/hole transporting material interface [J].
Cho, Kyung Taek ;
Paek, Sanghyun ;
Grancini, Giulia ;
Roldan-Carmona, Cristina ;
Gao, Peng ;
Lee, Yonghui ;
Nazeeruddin, Mohammad Khaja .
ENERGY & ENVIRONMENTAL SCIENCE, 2017, 10 (02) :621-627
[9]   Effects of the Molecular Weight and the Side-Chain Length on the Photovoltaic Performance of Dithienosilole/Thienopyrrolodione Copolymers [J].
Chu, Ta-Ya ;
Lu, Jianping ;
Beaupre, Serge ;
Zhang, Yanguang ;
Pouliot, Jean-Remi ;
Zhou, Jiayun ;
Najari, Ahmed ;
Leclerc, Mario ;
Tao, Ye .
ADVANCED FUNCTIONAL MATERIALS, 2012, 22 (11) :2345-2351
[10]   Air-Exposure Induced Dopant Redistribution and Energy Level Shifts in Spin-Coated Spiro-MeOTAD Films [J].
Hawash, Zafer ;
Ono, Luis K. ;
Raga, Sonia R. ;
Lee, Michael V. ;
Qi, Yabing .
CHEMISTRY OF MATERIALS, 2015, 27 (02) :562-569